Anavar, or Oxandrolone, is classified as a synthetic 17-alpha-alkylated derivative of dihydrotestosterone (DHT). This modification enhances oral bioavailability and preserves anabolic activity while reducing androgenic effects. Structurally, Oxandrolone belongs to the anabolic-androgenic steroid (AAS) family, featuring a 2-oxa substitution in the A-ring that differentiates it from traditional DHT derivatives. Related compounds include Dihydrotestosterone (DHT) itself, Oxymetholone, and Stanozolol, which share the steroid backbone but differ in substitutions that influence receptor affinity, metabolic stability, and tissue-selective activity. In research, Anavar and its analogs are studied for anabolic-to-androgenic ratio differences, receptor-binding profiles, and protein synthesis pathways. Analytical verification of these compounds typically employs HPLC, LC-MS, and NMR to ensure structural integrity and reproducibility in experimental models.